The endlessly interesting Junior General site has a new game called Zeppelins Over London.
Zeppelin Derby is a free print and play game that uses just 17 cards. From the game description:
It’s race day! Aircrews to your Zeppelins! In this fast-playing racing game for two intrepid Zeppelin pilots, the players race their airships by rolling dice and playing cards — including a few dirty tricks! Who has the moxie to cross the finish line first?
Rattrap Productions has a free paper model of the interior of a Zeppelin gondola, suitable for 28mm figures.
Here are a couple of free Zeppelin card models. I’m sure you can find a use for them.